https://community.48.ie/t5/Memberships/sim-card-suddenly-not-registered/m-p/75476#M9753 <P>What exactly do you mean by "not registered"?</P> <P>Is that the message that appears on the phone?&nbsp;</P> <P>Do you have a connection to the 48 network - i.e. signal bars?&nbsp;</P> <P>If not then if you do a manual search for networks can you see and connect to 48?</P> <P>If not then what happens - any error messages?&nbsp;</P> <P>When was everything working ok last?&nbsp;</P> <P>What changed in the meantime?&nbsp;</P> <P>Why phone software update or settings changes?&nbsp;</P> <P>What make and model of phone is it?</P> <P>Can you try your SIM in another unlocked phone to see if it works there?&nbsp;</P> <P>Maybe try taking the SIM out, gently cleaning the SIM contacts, reinstalling it, and rebooting the phone to see if that makes any difference?</P> <P>You might need to try a replacement SIM.</P> <UL> <LI><A href="https://community.48.ie/t5/The-Knowledge-Base/Do-You-Need-a-New-SIM/ta-p/8487" target="_blank" rel="noopener">https://community.48.ie/t5/The-Knowledge-Base/Do-You-Need-a-New-SIM/ta-p/8487</A></LI> </UL> <P>If you need to contact 48 support about this then see the links in my signature below.</P> Thu, 15 Oct 2026 08:40:06 GMT dalyer 2026-10-15T08:40:06Z https://community.48.ie/t5/Memberships/sim-card-suddenly-not-registered/m-p/75471#M9750 Thu, 15 Oct 2026 03:13:12 GMT https://community.48.ie/t5/Memberships/sim-card-suddenly-not-registered/m-p/75471#M9750 KarenM2858 2026-10-15T03:13:12Z https://community.48.ie/t5/Memberships/sim-card-suddenly-not-registered/m-p/75476#M9753 <P>What exactly do you mean by "not registered"?</P> <P>Is that the message that appears on the phone?&nbsp;</P> <P>Do you have a connection to the 48 network - i.e. signal bars?&nbsp;</P> <P>If not then if you do a manual search for networks can you see and connect to 48?</P> <P>If not then what happens - any error messages?&nbsp;</P> <P>When was everything working ok last?&nbsp;</P> <P>What changed in the meantime?&nbsp;</P> <P>Why phone software update or settings changes?&nbsp;</P> <P>What make and model of phone is it?</P> <P>Can you try your SIM in another unlocked phone to see if it works there?&nbsp;</P> <P>Maybe try taking the SIM out, gently cleaning the SIM contacts, reinstalling it, and rebooting the phone to see if that makes any difference?</P> <P>You might need to try a replacement SIM.</P> <UL> <LI><A href="https://community.48.ie/t5/The-Knowledge-Base/Do-You-Need-a-New-SIM/ta-p/8487" target="_blank" rel="noopener">https://community.48.ie/t5/The-Knowledge-Base/Do-You-Need-a-New-SIM/ta-p/8487</A></LI> </UL> <P>If you need to contact 48 support about this then see the links in my signature below.</P> Thu, 15 Oct 2026 08:40:06 GMT https://community.48.ie/t5/Memberships/sim-card-suddenly-not-registered/m-p/75476#M9753 dalyer 2026-10-15T08:40:06Z